Carrot houses, hay filled cubes etc safe?

[Buzzwizz619]

So they look like they are made from cardboard, but the listing says parchment which Google says is animal skin. Charlie loved to devour his 100% "edible" cube but are these things really safe? Or are they like the Snack a Shack stuff that's basically sawdust and honey?

Also are the various natures salads safe? Some of them contain what appear to be seeds or grains

Thanks

[Zoobec]

Personally I steer clear of all of those types of things. Frosty eats cardboard which causes gut slow downs in him so they don’t even get cardboard boxes!